[Desktop-packages] [Bug 1996494] Re: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash)
Thanks a lot for the fixes. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libxml2 in Ubuntu. https://bugs.launchpad.net/bugs/1996494 Title: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash) Status in libxml2 package in Ubuntu: Fix Released Bug description: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn’t be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered. Reference: https://ubuntu.com/security/CVE-2022-2309 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libxml2/+bug/1996494/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1996494] Re: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash)
This bug was fixed in the package libxml2 - 2.9.10+dfsg-5ubuntu0.20.04.5 --- libxml2 (2.9.10+dfsg-5ubuntu0.20.04.5) focal-security; urgency=medium * SECURITY UPDATE: NULL pointer dereference - debian/patches/CVE-2022-2309.patch: reset nsNr in xmlCtxReset in parser.c (LP: #1996494). - CVE-2022-2309 * SECURITY UPDATE: Integer overflow - debian/patches/CVE-2022-40303.patch: fix integer overflows with XML_PARSE_HUGE in parser.c. - CVE-2022-40303 * SECURITY UPDATE: Double-free - debian/patches/CVE-2022-40304.patch: fix dict corruption caused by entity ref cycles in entities.c. - CVE-2022-40304 -- Leonidas Da Silva Barbosa Wed, 30 Nov 2022 09:53:52 -0300 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libxml2 in Ubuntu. https://bugs.launchpad.net/bugs/1996494 Title: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash) Status in libxml2 package in Ubuntu: Fix Released Bug description: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn’t be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered. Reference: https://ubuntu.com/security/CVE-2022-2309 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libxml2/+bug/1996494/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1996494] Re: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash)
This bug was fixed in the package libxml2 - 2.9.13+dfsg-1ubuntu0.2 --- libxml2 (2.9.13+dfsg-1ubuntu0.2) jammy-security; urgency=medium * SECURITY UPDATE: NULL pointer dereference - debian/patches/CVE-2022-2309.patch: reset nsNr in xmlCtxReset in parser.c (LP: #1996494). - CVE-2022-2309 * SECURITY UPDATE: Integer overflow - debian/patches/CVE-2022-40303.patch: fix integer overflows with XML_PARSE_HUGE in parser.c. - CVE-2022-40303 * SECURITY UPDATE: Double-free - debian/patches/CVE-2022-40304.patch: fix dict corruption caused by entity ref cycles in entities.c. - CVE-2022-40304 -- Leonidas Da Silva Barbosa Tue, 29 Nov 2022 16:39:07 -0300 ** Changed in: libxml2 (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libxml2 in Ubuntu. https://bugs.launchpad.net/bugs/1996494 Title: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash) Status in libxml2 package in Ubuntu: Fix Released Bug description: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn’t be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered. Reference: https://ubuntu.com/security/CVE-2022-2309 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libxml2/+bug/1996494/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1996494] Re: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash)
This bug was fixed in the package libxml2 - 2.9.14+dfsg-1ubuntu0.1 --- libxml2 (2.9.14+dfsg-1ubuntu0.1) kinetic-security; urgency=medium * SECURITY UPDATE: NULL pointer dereference - debian/patches/CVE-2022-2309.patch: reset nsNr in xmlCtxReset in parser.c (LP: #1996494). - CVE-2022-2309 * SECURITY UPDATE: Integer overflow - debian/patches/CVE-2022-40303.patch: fix integer overflows with XML_PARSE_HUGE in parser.c. - CVE-2022-40303 * SECURITY UPDATE: Double-free - debian/patches/CVE-2022-40304.patch: fix dict corruption caused by entity ref cycles in entities.c. - CVE-2022-40304 -- Leonidas Da Silva Barbosa Tue, 29 Nov 2022 16:23:02 -0300 ** Changed in: libxml2 (Ubuntu) Status: Confirmed => Fix Released ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-40303 ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-40304 ** Changed in: libxml2 (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libxml2 in Ubuntu. https://bugs.launchpad.net/bugs/1996494 Title: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash) Status in libxml2 package in Ubuntu: Fix Released Bug description: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn’t be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered. Reference: https://ubuntu.com/security/CVE-2022-2309 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libxml2/+bug/1996494/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1996494] Re: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash)
** Changed in: libxml2 (Ubuntu) Status: New => Confirmed ** Information type changed from Private Security to Public Security -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libxml2 in Ubuntu. https://bugs.launchpad.net/bugs/1996494 Title: CVE-2022-2309: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash) Status in libxml2 package in Ubuntu: Confirmed Bug description: NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn’t be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered. Reference: https://ubuntu.com/security/CVE-2022-2309 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libxml2/+bug/1996494/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
